Cream pasteurizer and cooler.



PATENTED JUNE 26, 1906.

' H. N. RIVARD.

'OREAM PASTEURIZER AND COOLER;

4 SHEETSSHEET 1. I

APPLICATION FILED MAR. 28. 1906- nvento r,

Witnesses:

Attorneys PATENTED JUNE 26, 190

I H. NQRIVARD. CREAM PASTEURIZER AN'D COOLER.

APPLICATION FILED MAR, 28. 1906. I

4 SHEETS-SHEET 2.

v Inveritor,

' Attorneys Witnesses:

No, 824,147. fPATENTED JUNE 20, 1900. H. N. RIVARD. CREAM PASTEURIZER AND 000LER.'

APPLICATION FILED MAR-28. 190.6- 0

4 SHEBTS-SHEET 4.

Witnesses:

. and while'it is constantly circu lower A plane.

, UNITED STATES HUBERT N. RIVARD, ()FPA'IONTREAL, CANADA, AS SIGNOR To LA COM-' LAURENT, 0F MONTREAL, CANADA, A

. PAGNIE DE LAlTEltlE ST.

CORPORATION OF CANADA.

PATENT OFFICE.

CREAM PASTEURIKZER AND COOLER.

no. 824,147 A Specification of Letters Patent.

Application filed March 28, 1906. Serial Ila- 308.887-

RivArm, a subject of the Kin? of Great Brit-.

ain, residing in the city and istrict of Montreal, in the Province of Quebec, Canada, have invented certain new and useful Improvements in Cream Pasteurizers and Coolers; and I do hereby declare that the'following is a full, clear, and exact description of the in vention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to cream-pasteurizing and cream-cooling apparatus.

The object of my invention is to provide an apparatus in which the cream may be partly evaporated while being asteurized lating to a A further object is to provide means for quickly cooling the cream after it is pasteurized, it being desirable that the cream shall be'very uickly cooled.

A furt er object is to automatically regulate the degree of heat used in the pasteurizer; and my invention consists of the construction, combination, and arrangement of parts, as herein illustrated, described, and claimed.

In the accompanying drawings, forming part of this application, I have illustrated a form of embodiment of my invention, in which drawings similar reference characters designate corresponding parts, and in which Figure l-is a side elevation of thecomplete apparatus, except the heat-regulating attachment. Fig. 2 is a fragmentary detail of the upper portion A of the pasteurizingdrum ,showin'g attached thereto the heat-regulating apparatus, the latter being shown partly in section and partly in elevation. Fig. 3 is a front elevation'of the heat-regulating attachment. pumps for pumping the cream and the cool.- ing medium, a fragment of the casing of the pasteurizer being shown in elevation. A Fig. 5

- is a planxview of the apparatus. Fig. 6 is a plan view of the perforated steam-pipe used for heating the pasteurizing medium. Fig. 7 is a plan view of the water-pumping ap aratus, a fragment of the cooling-casing eing shown in horizontal section. Fig.8 is a ver tical section through the pasteurizing and Fig. 1 is a side elevation of the the cooling medium. Fig. 13 1s a plan vlew' -oasing, showing the supporting ofthe coolin braces and t e cream-receiving trough.

Referring to the drawings, 1 designates a rigid casin provided with a bottom 2. Disposed-on t e upper edge of the casing 1 is a circular pasteurizing-drum 3, having an inarallel to the bottom 4, between which is eft a continuous passagefi. Carried by the upper surface of the false bottom 5,is a continuous spiral wall 7. .Secured to the lower edges of the bottoms 4'and 5 and extending above the upper surface of the bottom 5'is a circular wall or flange 8, adjacent which is disposed a plurality of spouts 9, extending clined circular bottom 4 and a false bottom 5, v

Fig.

through the bottoms 4 and 5 and having 1 their lower ends staggered with relation to each other for a purpose hereinafter described. Secured to the under surface of the bottom 4 is a circular flange 10, adapted to engage around the upper end of the rigid casing 1 and to maintain the pasteurizing drum in position. A further object of the flange 10 is to provide a support for the pasteurizingdrum when the same is removed from the rigid casing 1, thefiange 10 being of suflicient length to protect the spouts 9 from strikin against the floor when the drum is remove from the casing.

A body of water 11 is carried in the passage 6, and a circular steam-pipe 12, having perforations 13, is disposed in the lower por-. tion of said passage. Connected to the pipe 12 is a feed-pipe 14, extending to a suitable source of hot-water supply and provided with a valve 15.

' In the operation of the parts so far described the cream is admitted to the pasteurizer at the point A, Fig. 5, and travels around the asteurizer between the walls 7 until it reaclies the spouts 9, where it is discharged.

Owing to the inclined surface of the bottom ICO 5, the cream is kept constantly circulating, and the asteurizcr being open-ended a portion of t 1e liquid in the cream is evaporated at the same time that the cream is pasteurized.

Connected to the valve 15 is a handle 16, to which is pivotally secured an upwardlyextending rod 17. Leading from the upper portion of the passage 6 adjacent the feed pipe 14 is a pipe 18, connecting with and supporting an open-ended casing 19, having a discharge-pipe l0. Disposed in. the casing 19 is a float 21, having attached thereto a rod 22, having itsupper end provided with screw-threads 23, connected to a lever 24, which is pivoted at to a bracket .26, carried by the casing 19. The upper end of the rod 17 is hooked over the lever 24 and is adjustably maintained in position by means .of the corrugated hook 27. (See. Fig. 2.) When the heat is sull'icient to force the water 11 through the pipe 18 and into the casing 111, the float 2-1 is raised, causing the rocking of the lever 24 and the consequent movement of the handle 16 to close the valve 15, so that the heat is cut oil from the pasteurizer and there is no danger of overheating the cream.

Disposed within the casing 1 is an outer rotatable corrugated iasing 28, provided with a horizontal flange 25), extending nearly to the casing 1 and adapted to prevent the passage of water upward, so that it can mix with the cream comingfrom the pasteurizingdrum. Secured to the outer surlace oi the IllOlIlbOI 28 is a plurality of downwardly-inclined flanges 30. The object of this plurality ol flanges is that when the cooling medium is thrown against the upper portion of the member 28 such cooling medium will be slightly heated and will run down the sides until it strikes a flange, when such cooling medium will be deflected and will drop entirely to the botton'i of the casing. so that the entire surface of the member 28 is rapidly cooled by receiving a fresh supply of the coolingmedium continuously.

Secured to the inner surface ol' the member 2h adjacent its upper end is an upwardly-inclined flange 31, provided with openings 32 to permit the passage of cream. Disposed within the casing 28 is a second corrugated casing 33, connected thereto by means of the braces 34, Fig. 8, and provided with a conical cover 35, from which depends a central bearing 36, provided with shoulders 37. The staggered spouts 9 are adapted to extend, respectively, over the flange 31 and the periphery of the conical cover 35. The cream discharged from the spouts 1) will therefore be evenly distributed on the inner surface of the casing 28 and the outer surl'acc of the casing 33, thereby providing [or the rapid cooling of the cream by providing a large surlace which is rapidly cooled, as hereinal'ter described.

Disposed in the bearing 36 is a vertical shaft carried on a pedestal 31), secured to the bottom 2, so that the casings 28 and 33 are free to be rotated, as hereinafter described.

Carried by the lower portion of the casing 1 is a plurality of transwrsc straps or braces 40, adapted to support a circular trough 41. Secured to the casings la and 33 are deflecting flanges 42, adapted to direct the cream into the trough 41.

farmed by the casing 1 are a plurality of supporting-braces 43, supporting the periorated pipes 44, extending upwardly inside of the casing 33, which casing is provided with downwardlyinclined flanges 33, corresponding to the flanges 30 on the outer casing .28. Suitably supported within the casing 1 is a plurality of vertical perforated pi )es 45, which are disposed between the wall of the casing 1 and the outer rotatable casing 2h, all of said perforated pipes being connected with a suitable feed pipe 46, having therein a valve 47. The perforations in said pipes are so arranged that a stream of water being pumped therethrough may impinge against the side walls of the casings 28 and 33, so that they are rotated on their supportingshal't 38.

Leading from the feed-pipe 46 is a short pipe 48, leading back to the bottom of the casing 1, a suitable strainer 49 being used to prevent the passage of solid matter through said pipe, Fig. 7. Connected with the pipe 48 is a pump 50, driven by a shaft 51, having a suitable driving-wheel 52. The casing 1 is provided with a trough 53, by means of which a body of ice 54 may be inserted in the bottom of the casing 1, so that the water pumped through the feedpipe 4e and into the perforated pipes 44 and 45 may be sufliciently cooled to quickly cool the cream discharged from the pasteurizer, as hercinbefore described.

Secured on the shaft 51 is a belt-pulley 55, Fig. 4, over which is run a belt 56, adapted to actuate a pulley 57 and run the creampump 58, disposed in connection with a pipe 5%), leading to the cream-receiving trough 41 The pi )e 59 is provided with a clean-out 60, through which the cream may be drawn in case of accident to the pump 58. From the pipe 51) the cream is pumped to a suitable place of deposit. The casing lis provided with a suitable overflmv-pipe (31, Fig. 1., so that the water will not rise above the level of the upper portion of the trough 551.

llaving thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1 In a device of the character described, a drum having an inclined double bottom, a continuous helical wall disposed in the drum. spouts disposed through the double bottom. said bottom being provided with an upwardly-extending flange and provided with a downwardl -extending flan e of greater width than t e len th of said s outs, and means for applying mat to the oublc bottom.

2. In a device of the character described, a pasteurizing-drum com rising a receptacle havin an inclined doub e bottom provided with ischarge-openings, acontinuous helical flange carried by the bottom, a perforated pipe disposed between the members of the double bottom, a'feed-pipe leading to the perforated pipe, a valve on the feed-pipe, a handle. on the valve, a pipe leading from the double bottom, an open-ended casing carried by the latter pipe and-provided with a dischar e-opening, a float disposed in the casing, a ro connected to the float, and a connection between the rod and the handle on the valve.

4. In a device of the character described, a

asteurizing-drum comprising a receptacle iiaving an inclined double bottom provided with discharge-openings, a continuous helical flange carried by the bottom, a perforated pipe disposed between the members of the double bottom, a feed-pipe leading to the perforated pipe, .a valve on the feed-pipe, a handle on the valve, a pipe leading from the double bottom, an open-ended casing carried by the latter pipe and provided with a discharge-opening, a float disposed in the-casing, a rod connected to the float, and provided with a screw-threaded end, a lever connected at one end to the rod, a fulcrum for the lever secured on the casing, and a rod adjustably secured to the opposite end of" the lever and to the handle of the valve.

5. In a device of the character described, a supportin -casin a pasteurizing-dr1im carried there y an provided, with dischar eopenin s, a rotatable corrugated casing isposed elow the pasteurizer and provided I with outer downwardly-inclined flanges and ried thereby and provided with an inner upwardly-inclined perforated flange and provided with a horizontal u per flan e, a second casing disposed within t e mova le casing, braces connecting the two latter casings, a bearing for the second. casing, and means for applying a liquid-cooling medium to the casings.

6. In a device of the character described, asupporting-casin a pasteurizing-drumcarprovided with dischargeopenings, a rotatable corrugated casing disposed elow the pasteurizer and provided with outer downwardly-inclined flanges and casing, means .medium to the casing, a cream-receiving provided with an inner 'upwardl v-inclincd perforated flangi and provided with a horizontal upper flange, a second casing disposed within the movable casing, bracesconnccting the two latter casings and provided with a conical cover and a central bearing and provided with inclined downwardly-extending flanges, and a shaft carried by the supportingcasing and inserted in the bearing 7. n a device of the character described, a supporting-casing, a asteurizing-drum provided with staggere discharge-spouts and carried by the casing, a plurality of rotatable casings dis osed within the supporting-casing and provi ed with flanges, a trough disposed below the flanges, and means for'appl ing a liquid-cooling medium to both rotatab e casings. I

8'. In a device of the character described, a

supporting-casing, a pasteurizing-drum provided with staggered discharge-spouts and carried b the casing, a plurality of rotatable casings isposed within the supporting-casing and provided with flanges, a trough disposed below the flanges, a pump connected with the trough, a clean-outvalve orithe connection between the pump and the trough, and means for appl ing a liquid-cooling medium toboth rotata le casings.

9. Ina device of the character described, a supporting-casing, a pasteurizing-druni disposed on the casing, a pair of rotatable, connected casings disposed within the supporting-casing, a feed-pipe leading from the lower art of the supporting-casing, a valve on the eed-pipe, a pipe leading from the feed-pipe back to the casing, a pump .on the latter pipe, a strainer on the latter pipe, and a lurality. of perforated pipes connected to the eed-pipe and extending upward inside and outside of the rotatable casings.

10. In a device of the character described, a supporting-casing, a pasteurizing-druni thereon, a pair of rotatable casings disposed Within the supporting-casing, an ice-receiving trough proij ecting from the supportingor applying a liquid-cooling trough supported adjacent the rotatable casings, and means for removing cream from the trough.

11. In a device of the character described, a supporting-casing, a asteurizin -drum thereon, a pair of rotatab e casings disposed within the supporting-casing, an ice-receiving trough pro'ecting from the supportingcasing, means or applying a liquid-cooling medium to the casing, a cream-receiving trough supported adjacent the rotatable casings, and means for removing cream from the trough comprising a pipe leading to the cream-trough, a pump connected to the pipe, means for driving the pump, and a clean-out on the pipe.

12. In a device of the character described,

a supporting-casing, abyasteurizin -drum jaeent the rotatable casings, and means for thereon, a pair of rotata casings isposed removing cream from the trough. 10 within the supporting-casing, an ice-receiv- In witness whereof I have hereunto set my ing trough pro ecting from the sup'portinghand in the presence of two witnesses.

casing, means for applying a liquid-cooling HUBERT N. RIVARD. medium in the casing, an overflow-pipe con- Witnesses:

nected to the bottom of the supporting-cas- E. M; SLINEY,

ing, a cream-receiving trough supported ad- C. O. COUs1Ns. 

